Vera Farmiga’s a single-mom — some sort of therapist, I gather from the trailer — whose aged father (Christopher Plummer) is a stoner/pot dealer/true believer from way back.

She and her son get re-acquainted, “Road Trip” style, when they have to take the whimsical, blissed out old Buddhist in by driving his ancient Roller (Rolls-Royce) cross country. Bobby Cannavale is her ex, Christopher Lloyd and Peter Fonda are dad’s old pot-growing/loving/distributing pals.

Looks too cute for its own good, but elderly folks on road trips is totally a thing. At the movies, anyway. “Boundaries” comes our way in limited release in June.